History log of /llvm-project/llvm/test/Transforms/InstCombine/memchr-11.ll (Results 1 – 3 of 3)
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# 4ab40eca 03-Oct-2022 Bjorn Pettersson <bjorn.a.pettersson@ericsson.com>

[test][InstCombine] Update some test cases to use opaque pointers

These tests cases were converted using the script at
https://gist.github.com/nikic/98357b71fd67756b0f064c9517b62a34

Differential Re

[test][InstCombine] Update some test cases to use opaque pointers

These tests cases were converted using the script at
https://gist.github.com/nikic/98357b71fd67756b0f064c9517b62a34

Differential Revision: https://reviews.llvm.org/D135094

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Revision tags: llvmorg-15.0.1, llvmorg-15.0.0, llvmorg-15.0.0-rc3, llvmorg-15.0.0-rc2, llvmorg-15.0.0-rc1, llvmorg-16-init
# 516915be 30-Jun-2022 Martin Sebor <msebor@redhat.com>

[InstCombine] Fold memchr and strchr equality with first argument

Enhance memchr and strchr handling to simplify calls to the functions
used in equality expressions with the first argument to at mos

[InstCombine] Fold memchr and strchr equality with first argument

Enhance memchr and strchr handling to simplify calls to the functions
used in equality expressions with the first argument to at most two
integer comparisons:

- memchr(A, C, N) == A to N && *A == C for either a dereferenceable
A or a nonzero N,
- strchr(S, C) == S to *S == C for any S and C, and
- strchr(S, '\0') == 0 to true for any S

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D128939

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# d8b22243 01-Jul-2022 Martin Sebor <msebor@redhat.com>

[InstCombine] Add tests in anticipation of D128939 (NFC)

Precommit tests exercising the future folding of memchr and strchr calls
in equality expressions with the first function argument.